I think this is one of my new favorites. I had forgotten I had this. We need to focus on the good we have done in our lives instead of nit-picking all the things we did wrong or could have done better or differently or looking only at what others have accomplished.
"People who have given up are ruled by their darkest mistakes, worst failures, and deepest regrets. If you want to be successful, then be governed by your finest thoughts, your highest enthusiasm, your greatest optimism, and your most triumphant experiences."